Martin SD 1 11/16 Standard QD Bushing, 1-11/16 in Dia Bore, 2.187 in Dia Barrel, 3.188 in Dia Flange, 1.813 in OAL, Ductile Iron
QD (quick detachable) bushings are designed for conventional mounting or reverse mounting. These bushings have a flange.
Martin QD Bushing, Standard, 1-11/16 in Bore Dia, 2.187 in Barrel Dia, 3.81 in Hub Dia, 2.688 in Bolt Circle, 3.188 in Flange Dia, 1/2 in Flange Thickness, 3 Bolt Holes, 1/4-20 x 1-7/8 in Screw, 5000 in-lb, 1.813 in Overall Length, 3/16 x 3/8 in Keyway, Ductile Iron